Flushing-valve.



E. L. KELLAN.

FLUSHING VALVE. APPLICATION FILED FEB. 20. 1911.

Patented Jan. 5, 1915.

2 SHEETSSHEBT 1.

min/26863: I MWM E. L. KELLAN.

FLUSHING VALVE. APPLICATION FILED FEB.20.1911.

Patented Jan. 5, 1915.

2 SHEETS-SHEET 2.

Wllneisses rd w i r m o a r. r

lldll EDWARD 1L. KELLAN, 6F GHICAGG, 1113111318155.

rLUs'e'rno-vanvn.

Specification of Letters Patent.

Patented Jan. 19150 Application filed February 20, 1911. Serial No. 609,670.

= for water-closets of the type known to the trade as llushoincters in which the closing of the valve is controlled by a retarding device or dash pot.

The invention seeks to provide a simple and eltectivc construction which can be economically manufactured and which will he durable and eflicient in operation.

The invention consists in the "features of improvement hereinafter set forth, illustrated in the preferred form in the accomanying drawings and more particularly pointed out in the appended claims.

In the drawings, Figure 1 is a vertical section of the improved flushing valve. Fig. 2 is a horizontal section on the line 22 of Fig. 1. Figs. 3 and t are side and end elevations. respectively of the improved valve. i i 5 is a partial vertical section illustrating a modification.

The casing of the valve preferably conr,

prises two cvlindrical portions and 11 arranged side bv side, having parallel axes and connected by an integral intermediate portion 12. The main portion 10 of the casing is provided intermediate its ends with a partition 13 having a circular opening 14: extending therethrough. At its upper portion,'tl1e partition 13 is provided with an upwardly facing annular rib 15 forming a valve seat. At its upper portion and outside of and spaced from the valve 15., the partition 13 is provided with an annular shoulder 16 extending above the valve seat. The side wall of the main casing 10 above the valve seat is provided with a laterally projecting inlet pipe 17 and at its bottom portion. below the valve seat, it is provided with a downwardlv projecting outlet or discharge pipe 18. The upper end of the main casing 10 is closed by a cap 19 removably threaded thereon.

A main valve 20 normallv rests upon the seat 15 to cut oil the flow of water troin the inlet to the discharge outlet of the casin This main valve comprises a disk of considerable thickness which fits Within the annu. lar shoulder 16 and is provided with a suitable packing 21 for engagement with the valve seat and which packing is set within an annular recess in the lower face of the valve. The stem 23 of the main valve is hollow and a guiding cage 24: is secured to the stem. This cage fits within the opening it and it is provided at its upper portion w1th a flange 25 and a hollow stem 26 which 15 threaded within the hollow stem 23 or the valve. 20. The flange 25 serves to hold the packing 21 in place. The upper portion of the stem 23 is provided with anenlarged,

integral, cylindrical portion or piston27 which fits within the opening of a ring 28 that is removaloly threaded within an annularshoulder 29 on the inner wall of the main casing 10 above the opening of the inlet pipe 17.

The passage through-the rnain valve is normally closed by a relief valve compris ing two washers 3G and 31 threaded upon. the upper end of a stem and between which is arranged the packing ring 33. The lower washer 31 is smaller than the upper Washer and is or" conical form, so that the packing ring 33 normally rests upon a valve seat formed on the upper end of the tubular stem 26. A. look nut 34 is preterably provided upon the upper end of the.

relief valve stem :2. The stem 32 is pro-- vided with shoulders or ofi'sets 36 which when the relief valve is closed, are spaced somewhat below the main valve, but which will engage the main valve to open the so me when the relief valve stem is raised. The lower end of the relief valve stem is provided with a transverse slot 3? in which engages a pin 38 that projects laterally from the end of a. crank arm 39. This crank arm is fixed to the inner end of a short shaft 40 which projects laterally through the side wall of the main valve casing 10 below or upon the discharge side of the valve seat. This shaft is provided with a suitable stuffing box -11 to prevent leaking and its outer end carries a crank arm 42. The crank arms 39 and 42 upon the shaft 40 project, as indicated in Fig. 1, in opposite directions.

The outer end of the crank arm t2 engages a pin (see Figs. 3 and 4) upon the lower end of a link ll. The upper end of this link, in the form shown, is provided with. an eye in which engages a hook 4:5 on the endof a K In- J suitable. follower ,56.

laterally projecting arm 46. The inner end of the arm 46 18 provided with a head 47- which is threaded upon the upper end of a rod 48 that is connected to the movable element of the retarding device or dash-pot.

The retarding device or, dash-pot comprises a closed casing formed of a cylinder 49 and upperand lower ends or cap pieces 50 and 01 screw threaded thereto. This closed cylinder is preferably stationary and removably held in position and for this purpose the llange upon the lower end or cap 51 1S prov ided with external screw threads which engage the internally threaded lower end of the cylindrical casing section l1.' By this means, the dash-pot or retarding device is reinovably secured Within the cylindrical casing section 11 and may be readily removed for repairs or the like.- A piston within the cylinder 49 'of the dash-pot comprises two disks 52 which are threaded upon the lower end of the rod 48 and between which is arranged a cup-leather 53 having an upturned edge engaging the walls of the cylinder 49. '1 lie rod 48 extends through a smiling box 54 in the upper end or head 50 of the dash-pot cylinder and a ring 55 of packing material is held in position within the same and about the rod by means of a.

A coiled spring '5'] arranged within the stufling box and about the -rod engages the follower, and a cap 58 threaded upon'the stuliing box engages the spring and adjusts the tension thereof to maintain a tight jointabout the rod. The rod 48 is hollow and'a plug 59 secured Within its lower end, is provided with a small opening or by-pass 60, the size of which is regulated by a valve61 threaded through -the central axis opening of the plug. This regulating valve 61 is formed upon the lower end of a rod or stem 62 arranged within the hollow rod 48 and having a slot at its upper end in which a screw driver may be engaged, when the head 47 is removed, to adjust the regulating valve. The rod 62 is preferably provided with an annular recess or groove in its upper portion within which is arranged a packing. 63 that engages the walls of the hollow stem or rod 4S. A coiled spring 64 is arranged within the cylinder 49 below the piston and normally upholds the latter in raised position. This closed cylindrical casing of the dash-pot or retarding device is adapted to contain oil, or other suitable liquid. 'It is obvious, that, as the piston is depressed against the tension of the spring 64, the oil or like liquid will pass freely about the edge of the cup-leather 53 of'the piston, so that the latter may be easily shifted in" downward direction by pressing upon the push-head 47 on the upper end of the rod48. During the restoring movement of the piston effected by the spring 64, the cup-leather 53 expands and its edge snugly engages the walls of the cylinder, so that the oil must flow from the upper side of the piston to its lower side through the restricted passage 60. The upward movement of the piston is thus slow and retarded and may be retarded to a greater or less extent, as desired, by adj ustmg the regulating valve 61.

The operation of the device is as follows: The rod 48 and the parts connected thereto are manually depressed by applying downward pressure upon the push-head 47 on the upper end of the rod 48. This depresses the piston within the dash-pot and cylinder and also depresses the outer end of the crank arm 42 so that the inner end of the oppositely arranged crank arm 39 is raised to lift the valve stem 32 and relief valve carried thereby. The Water in the main valve casinglO above the cylindrical part or piston 27 then passes through the hollow stem of the main valve and the pressure above the cylindrical part or piston 27 is relieved. Then, inasmuch as the cylindrical part or piston 27 is substantially the same size as the opening 14 through the main valve seat, the inlet pressure upon the main valve is balanced and the latter can be readily opened by the engagement of the shoulder 36 on the relief valve stem with th under side of the main valve.

If desired,the part or piston 27 may be formed, as indicated in Fig. 5, of a disk 27 larger than the opening 14 and fitting somewhat loosely within the cylindrical bore of the main Valve casing 10. When so formed, the opening of the relief valve will relieve the pressure above the piston 27 and then the inner pressure on the under side of the piston will counterbalance the pressure on .theupper face of the valve, but, inasmuch as he piston is larger than the opening through the valve seat, the inlet pressure will assist in opening the main valve.

In'both forms, when once the main valve is opened, the inlet pressure tends to hold it open as'longas the relief valve is open to permit the free escape of water from above the pistons 27 and 27. The closing movement of the parts is effected by the spring 64 and is retarded by the action of the piston within the oil cylinder 49. The closing movement of themain valve is also retarded by the action of the pistons 27 and- 27', since it is necessary that water leak 'around these pistons into the upper end of the main valve casing 10 before the main valve can close. The closing movement of the main valve is therefore accomplished slowly and an ample flushinlg is cfi'ected. 'lVhen the main valve is completely seated, the, water from the inlet pipe 17 continues to leak around the piston 27 or 9 7' until the pressure on opposite sides of this piston is balanced. The inlet pressure then serves to securely hold the main valve on its seat pressure on the upper side of the 1b" again relieved by the shifting of the manually operated valve stem. 32.

l main valve 520 approaches its seat 3 reaches the upper edge of the shoul greater part of the flow of water 1 the casing is cut ofi, enough passes around the valve and over the c seat to effect the afterfill. Moreis small portion of water flows through the narrow space around the main valve and over seat with considerable force so that it serves to remove any sedii can the valve seat which might other." wise prevent the proper engagement of the valve therewith By having the disk valve lit loosely within the annular shoulder 16 outside of and on the inlet side of the valve seat, the latter is thus automatically cleaned go of sediment and the like and a tight joint is n'iaintained between the valve and its seat. 7 movable element of the dash-pot or ing device is connected to the relief al 'e to move simultaneously therewith in posite directions. The oil chamber is entirely c osed so that no evaporation can occur and the dash-pot or retarding device properly operate for an indefinite time. I re oil chamber is so arranged impossible for water to leak into .iore, it may be readily removed ed for repairs or the like. The c i une valve are readily accessible for is the like by ren'ioving the cap 19. i /hen the dash-pot is removed for repairs e l ke, the valve can be operated by the fattlokjd, the valve may be readily operated by pushing with the hand upon the 40 head 4-? the upper end of the rod 48. If desired, it can also be readily operated by a lever 65 pivotally mounted upon a stud 66 Lhat projects laterally flOlllilZllQ casing section ll. 'l he grip portion of the lever 65 3o extends forwardly from the stud 66 while its opposite end extends rearwardly therefrom and its rear end (57 is bent or laterally o'll'set to engage a slotted lug 68 on the lower end of the link l4, lly raising the outer end of the lever 65, its lower end is depressed and through the medium of the link 44-, depresses the rod 48 and crank arm 42 to eli'ect the operation of the parts as before described. The lever or the head 47 can 5 he used not only to open the valve but also to close the same in case the dash pot gets out of order for any reason.

obvious that l'lLllllGlOllS changes may he made in the details set forth without departure from the essentials of the invention as defined in the claims.

l claim as my invention: 1. A flushing valve comprising a casing having a valve seat. a main. counterbalanced t5 valve on the inlet side of said having a passage extending therethrough, a relief valve normally closing said passage, a stern for said relief valve extending through said. passage and provided with a shoulder for opening said main valve, :1 closed liquid 0011- vstaining cylinder at one side of said casing, a piston in said cylinder having means restricting the passage of liquid therethrough in one direction, one of said piston and cylinder elements being fixed and the other manually shiftable, restoring spring for said shiftable element, a shaft extending through said valve casing on the discharge side of said valve seat, a cranlr arm on said shaft engaging said relief valve stem, so an arm on said shaft, said arm being ex:- ternal with respect to said casing and said cylinder and a link connecting the same. to said manually shiftalole element, substantially as described.

2. A flushing valve comprising a casing having a valve seat, with an inlet port above the seat and a discharge port below the same, a removable cap closing the upper end of said valve casing, an upwardly opening, as main valve on the inlet side of said seat having a hollow stern and apiston like part restricting the passage of water from said inlet port to the upper portion of said valve casing, an upwardly opening relief valve controlling the flow water from the upper portion of said valve casing to the discharge side of said valve seat, a stem for said relief valve extending through the hollow stem of said main valve and having a shoulder below the latter for opening the same, a shaft journaled in the wall of said casing below said valve seat, a crank arm on the inner end of said shaft and engaging the lower end of said relief valve stem to shift both of said valves in opposite direotions, a closed, liquidcontainingcylinder at one-side of said valve casing, a piston in said cylinder having means for restricting the pasage of liquid therethrough in one direction, one of said piston and cylinder elements being fixed and the other manually shiftable, a restoring spring for said movable element, a crank arm on the outer end of said shaft, and connections between said crank arm and said manually shiftable element, said arm and said connections being external with respect to said cylinder, substantialy as described,

3. A flushing valve comprising a vertical, cylindrical casing having a valve seat, a laterally opening inlet pipe above said valve seat and a downwardly opening discharge pipe 'belowthe same, a removable cap closing the upper end of said valve casing, an upwardly opening main valve on the inlet side of said valve seat having a hollow stem and a piston-like part restricting the passage of water from said inlet pipe to the up-. per end of said valve casing, an upwardly opening relief valve controlling the How of water from the upper portion of said valve casing to the discharge side of said valve seat, a stem for said relief valve extending through the hollow stem of said main valve and having a shoulder for opening said main valve, a shaft journaled in the Wall of said casing below said valve seat, a crank crank arm to said manually shift'able ele ment, substantially as described.

4. A flushing valve comprising two vertical, chambered portions arranged side by side with a partition between them, the main portion of said casing having a valve seat with inlet and outlet ports above and below said seat, respectively, a counterbalanced main valve on the upper inlet side of said valve seat having a pasage extending therethrough, a relief valve normally closing said passage, a stem for said relief valve extending through said passage and having a shoulder below said main valve for lifting the latter, a closed, liquid-containing cylinder removably fixed within the other chamber of said casing, a piston in said cylinder having means for restricting the flow of liquid therethrough in one directionand an upwardly extending piston rod projecting above said casing, a restoring spring in-said cylinder for said piston, a

rock shaft'journaled in the lower portionof said casing, a crank arm on the inner end of said rock shaft within said casing, said crank arm being connected to the lower end of saidrelief valve stem, an external crank arm on the outer end of said shaft, and a link connecting said external crank arm and the upper projecting end of said piston rod, substantially as described.

5. A flushing-valve comprising a casing formed of two integral, vertical, substantially cylindrical portions arranged side by side, the main section of said casing having a valve seat with inlet and outlet openings above and below said seat, an upwardly opening main valve above said seat having a passage extending therethrough, an upwardly opening relief valve controlling said passage, a stem for said relief valve'having a shoulder below said main valve for lifting the latter, a closed, liquid-containing c vlinder arranged within the other cylindrical portion of said casing, a piston in said cylinder having means for restricting the flow of liquid therethrough in one direction, one of said cylinder and piston elements being fixed and the other manually shiftable, a rock shaft journaled in the lower portion of said casing and having crank arms arranged on said inner and outer ends, respectively, said inner crank arm being arranged within said casing and directly engaging the stem of said relief valve to shift both of said valves in opposite directions, and connections between said outer crank arm and said manually shiftable element, said outer crank arm and connections being external with respect to said cylinder, substantially as described.

6. A flushing valve comprising a casing formed of two cylindrical portions arranged side by side, the main section of said casing having a valve seat with inlet and outlet openings on opposite sides of said seat, a main valve cooperating with said seat, having a'passage extendingtherethrough, a relief valve controlling said passage, a stem for said relief valve having a shoulder for opening said main valve, a retarding device arranged within the other cylindrical portion of said casing, an upwardly projecting push-rod connected to the movable element of said retarding device, a rock shaft journaled in the lower portion of said casing and having oppositely extending crank arms, one engaging said relief valve stem, a link connecting the other crank arm to said rod, and a lever pivotally mounted on the valve casing and having one end engaging said link.

7. A flushing valve comprising a casing having a valve seat, a valve on the inlet side of said seat and having a passage therethrough, a relief valve controlling said passage, a stem for said relief valve extending through said passage and having a shoulder for opening said main valve, a retarding device.comprising a closed liquid containing cylinder and a piston in said cylinder, one of said elements being fixed and the other manually shiftable, a restoring spring for the manually shiftable element, connections between the manually shiftable element and said relief valve and an upwardly projecting push-rod connected to the manually shiftable element, a link depending from said push-rod and a lever pivotally mounted on the valve casing and engaging said link, substantialy as described.

8. A flushing valve comprising a casing formed of two. vertical portions arranged side by side, the main portion of said casing having a valve seat with inlet and outlet openings above and below said seat, respectively. an upwardly opening main valve on the inlet side of said seat. said main valve having a passage extending thereweaves controlling said passage, a stem for said relief valve having a shoulder below said main valve for lifting the latter, a retarding device arranged within the other portion -of said casing, an upwardly projecting pushrod connected to the movable element of said retarding device, a rock shaft journalcd in the lower portion of said casing and havin oppositely extending crank arms mounte thereon, one of said crank arms being in direct engagement with said relief valve stem to shift both of said valves in opposite directions, and a link connecting the other of.

said crank arms to said push rod, substantially as described.

9. A flushing valve comprising a casing formed of two vertical, substantially cylindrical sections arranged side by side, the main section of said casing having an internal valve seat With inlet and outlet ports arranged respectively above and below said seat, an outwardly opening main valve on the inlet side of said seat having a piston-' like part for restricting the flow of liquid into the upper portion of said main casing section, a removable cap closing the upper end of said main casing section, said main valve having a discharge extending therethroug'h, an upwardly-opening relief valve normally closing theuppe'r end of said passage, a stemfor said relief valve extending through saidpassage and having a vshoulder below said main valve for lifting the latter, a closed, liquid-containing cylinder removably mounted within the other cylindrical portion of said casing, a piston in said cylinder having means for restricting the now of liquid therethrough in one direction, one of said cylinder and piston elements being fixed and the other manually shiftable, a rock shaft journaled in the lower portion of said casing and having crank arms thereon, and means connecting said crank arms, respectively, to said relief valve stem and to said manually shiftable element, said crank arms and connections being external with respect to said liquidcontaining cylinder, substantially as described;

EDWARD L. KELLAN, Witnesses:

OTTILIE C. FREIBERG, KATHARINE GERLACH. 

